Flue-cleaner



(No Model.)

L. DUENNISGH PLUB CLEANER. No. 388,848. Patented Sept. 4, 1888.

N. PETERS, Pnmomhognpnzr. wnsmngwf n. c.

UNITED Sr'rns aprem? Ormea LOUIS DUENNISOH, OF SANDUSKY, OHIO.

FLUECLEANER.

SPECIFICATION forming part of Letters Patent No. 388,848, dated September 4, 1888.

Application filed June 8, 1888. Serial No. QTGAlE).

To all whom t may con/cern:

Be it known that I, LoUIs DUENNIsoH, a citizen of the United States, residing at Sand usliy, in the county of Erie and State of Ohio, have invented certain new and useful Improvements in FlucGlcaners, of which the following is a. specification, reference being had therein to the accompanying drawings.

This invention relates to certain new and useful improvements in {luc-cleaners; and the invention belongs to that class of devices wherein the cleaning of the tubes is performed by the action of steam.

My invention is designed to form an improvement on the device patented to me Dccembcr l, 1885, No. 331,69l.

The object of my improvement is to render the device as shown in this previous patent applicable to any contingencies for which the prior one is not adapted; and my invention consists, irst, in the peculiar construction of a composite rigid and llexible handle,whereby the head of the fine-cleaner may be readily insorted and pushed through the tube without requiring the extended floor-space which an all-rigid handle would require; further, in the peculiar construction of the head of the flue cleaner, by means of which the same is made reversible, and also adapted to be used as a steam-blower for various purposes in which such an application may be of benet in the general cleaning of boilers and lnes ofall kinds where the cleaning can bc accomplished by means of steam.

in the drawings which accompany this speci cation, Figure lis a section through a boiler lne with the head ofniy cleaner inserted there in, asin the act of cleaning. Fig. 2 is a perspective view showing the device complete and illustrating` the manner of using it.

A is a hollow conical head, diainondshaped in crossseetion, and provided with the corresponding screw-threaded apertures B at both ends in the axial line of the head. Into one of these apertures is scoured the hollow tube C, which forms the rigid part of the handle, while the other end is closed bythe screwblock D, removably secured therein and preferably forming a point for the head. The

largest diameter of this head is slightly smaller than the inner diameter of the boilcr-ilues on (No modell which the device is intended to bc used, so as to permit of its ready insertion and passage through the flue from end to end, even if the flues are covered with soot. Close to the largest diameter of the head, but in a plane parallel thereto and upon a smaller diameter, the head is provided with a series of cireumfereir tial oblique apertures or pcrforations, E, for the purpose of permitting the steam to issue from the head in oblique jets against theinner wall of the boiler-flue when the device is in operation, in order to produce the greatest mechanical effect of the steam upon the boilerscale.

The tube C, which forms the rigid part of the handle, is made a few feet in length, (more or less) and to its rear end the lexiblepart F of the handle is secured by means of asuitable coupling, G. This flexible handle is made of stearnhosepreferably wrapped with marline, and painted with aheavy coatoflire proofpaint to protect it from the wear and heat while in the liuc. To the rear end of this flexible hose another suitable eoupling,H,is secured-p ref erably a union-eonpling-for the purpose of readily securing it to a convenient steam-coa nection with the boiler.

To protect the operator from burning his hands upon the handle O when operating it, I preferably provide it with the sliding handle I.

In practice, live steam from the boiler being admitted into the head by opening the valve J, the operator inserts the head ol' the device into the flue and pushes it gradually into the flue. By having a marl; on the hose he is notified that the head has reached the rear end of the flue, when he withdraws it and passes it into another fine. Vith the handle thus construeted,'part rigid and part ilexible, the opcrater can clean one flue after another from the front of the boiler, requiring but little floor-space to move around, while at the saine time his Work is lightened, and the device may be conveniently stored away when not in use. By unscrewing the plug D and reversing the head on the tube the apertures are pointed toward the front, and the action of the steam when in operation will cause the soot and scales to be thrown toward the operator.

The object of making the head reversible is to enable the inexperienced operator to make IOC of the head, the handle secured in the aperture at one end and the block removably secured in the other end, and the oblique steamapertures in said head, substantially as and for the purpose described.

In testimony whereof I affix my signature, in

presence of two witnesses, this 23d day of May, 2o

less.

' Louis DUENNISCH-1 Vitnesses:

C. V. WAGNER, JOHN O. FRENCH. 

